Manta again Posted October 2, 2016 Share Posted October 2, 2016 Spent the day sorting out a few details for the new owner of my A. Fitted a new idle control valve to overcome the slightly erratic idle but what I have now is a car that idled at 2000rpm. What have I missed anyone? Quote Link to comment Share on other sites More sharing options...
Manta again Posted October 3, 2016 Author Share Posted October 3, 2016 Have cleaned the old valve and reinstated it car now idles again, there are no air leaks but the engine still has a slight hunt. Could this be timing related? If so what is the correct timing? Quote Link to comment Share on other sites More sharing options...
Kevin Abbott Posted October 3, 2016 Share Posted October 3, 2016 Those idle control valves can be a pig and easy to get the wire mixed up as I think the knock sensor is next to it and has the same connector. Timing is set by the cam belt so I don't think you will of changed that. My Brother is having fun with similar issues in his Mancona 1 Quote Link to comment Share on other sites More sharing options...
Manta again Posted October 4, 2016 Author Share Posted October 4, 2016 22 hours ago, Kevin Abbott said: Those idle control valves can be a pig and easy to get the wire mixed up as I think the knock sensor is next to it and has the same connector. Timing is set by the cam belt so I don't think you will of changed that. My Brother is having fun with similar issues in his Mancona If you type c20xe rough idle into Google there is a life time of reading. Tonight I adjusted some of the throttle stops which has improved the idle it's now got just a very slight hunt. 1 Quote Link to comment Share on other sites More sharing options...
Ems Posted October 7, 2016 Share Posted October 7, 2016 Glad it's not just me having problems, I've changed all the gaskets on the inlet side, fitted new pipes and a new icv. The throttle switch is ok and set correctly and there's slack in the throttle cable, also adjusted the throttle stop. It idles around 1800rpm when hot and also hunts slightly. The plugs get sooty very quickly as well. Surprisingly the car goes well. Quote Link to comment Share on other sites More sharing options...
Kevin Abbott Posted October 7, 2016 Share Posted October 7, 2016 We suspect injectors. We tried quite a few sets and it wouldn't run on some. Too much fuel on others Quote Link to comment Share on other sites More sharing options...
Manta again Posted October 8, 2016 Author Share Posted October 8, 2016 My idle now fluctuates between 1000 and 1200, does the oxygen sensor come into play at these levels. Quote Link to comment Share on other sites More sharing options...
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